feat: support angular 22

[spliffone]

• drop support for eslint 8 and legacy eslintrc config format

[Copilot]

Pull request overview

This PR updates the repo’s linting toolchain to support Angular ESLint v22 (for Angular 22), primarily by bumping angular-eslint and related TypeScript-ESLint packages, and updating the Angular ESLint peer dependency range in the published Angular config package.

Changes:

• Bump angular-eslint to 22.0.0 and update TypeScript-ESLint tooling to 8.61.0.
• Regenerate package-lock.json to reflect the upgraded Angular/CLI/devkit dependency graph.
• Expand @siemens/eslint-config-angular peer dependency range to include angular-eslint ^22.0.0.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
package.json	Updates devDependencies to Angular ESLint 22 and TypeScript-ESLint 8.61.0.
package-lock.json	Refreshes lockfile for the upgraded dependency tree and peer ranges.
eslint-config-angular/package.json	Extends peerDependencies to allow angular-eslint v22.

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[fh1ch]

Nice one, thanks a lot for the work here 🙇

No findings from me or CoPilot.

LGTM 👍